CN204041035U - A kind of oil/gas well stimulation system - Google Patents
A kind of oil/gas well stimulation system Download PDFInfo
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- CN204041035U CN204041035U CN201420431399.4U CN201420431399U CN204041035U CN 204041035 U CN204041035 U CN 204041035U CN 201420431399 U CN201420431399 U CN 201420431399U CN 204041035 U CN204041035 U CN 204041035U
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- well stimulation
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- 239000000203 mixture Substances 0.000 claims abstract description 10
- 238000000926 separation method Methods 0.000 claims abstract description 5
- 239000006096 absorbing agent Substances 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 3
- 238000005461 lubrication Methods 0.000 claims description 3
- 239000007789 gas Substances 0.000 abstract description 83
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- 230000008901 benefit Effects 0.000 description 2
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- 230000003247 decreasing effect Effects 0.000 description 1
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- 238000005247 gettering Methods 0.000 description 1
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Abstract
The utility model relates to gas well collecting device field, particularly relates to a kind of oil/gas well stimulation system.Oil/gas well stimulation system comprises the first gas-liquid separator, and the import of the first gas-liquid separator is connected with managing in sleeve pipe, and an outlet is connected with the import of compressor subsystem, and one exports and is connected with liquid storage tank; One outlet of compressor subsystem is communicated with the outer ring cavity of sleeve pipe, and an outlet is connected with gas central treating station.From in sleeve pipe pipe flow out gas-liquid mixture the first gas-liquid separator after gas-liquid separation, gas becomes gases at high pressure through the compression of compressor subsystem, gases at high pressure return in the outer ring cavity of sleeve pipe again, so increase the pressure in pit shaft by the gases at high pressure returned in pit shaft, improve the gas-liquid lifting power being arranged in the sleeve pipe of pit shaft, gas-liquid flow velocity in sleeve pipe is improved, reaches quick effect of increasing production.
Description
Technical field
The utility model relates to gas well collecting device field, particularly relates to a kind of oil/gas well stimulation system.
Background technology
In the gas field development later stage, along with deepening continuously of oil-gas field development, gas well pressure can reduce year by year, and part gas well yield also As time goes on and the reducing year by year and present from peak to the trend of successively decreasing year by year of gas well pressure.And existing pressure boost gas production equipment is difficult to the needs meeting the pressure that gas well constantly reduces.In order to maintain the higher output of gas well, prior art adopts low pressure well head natural gas increasing device, and this increasing device can extend the production life of well of weary well.
The following two kinds of technology of general employing in prior art:
One adopts high-pressure injection drainage technology, when not by the external energy, utilizes high-pressure gas well self-energy to adopt induction apparatus to come the gas production of energize low-pressure gas well, production.The advantage of this technology is that injection apparatus size is little, structure is simple, stable, cost is low.But the ubiquitous drawback of this technology must have high-pressure gas well to provide energy around weary well or low-pressure gas well, and could realize the exploitation again of gas well, therefore the limitation of this technology is larger.
Another kind adopts wet screw rod compressor yield-increasing technology, and this technology has the following advantages: the 1) gettering ability of lower pressure (close to normal pressure); 2) be applicable to the feature of the multiphase flow of water-beating gas well, there is certain band outlet capacity; 3) pumping operation is steady, pulse little, avoid because unit pulsation causes gas well ripple.But this technology due to rotor flank of tooth difficulty of processing large, need special tool sharpening, thus cost of manufacture is high; In addition, due to self structure, boosted flow can not be too small, and the volume flow of Normal squeezing machine is greater than 2m
3/ min just has superiority.
For above problem, need badly and want a kind of new oil/gas well stimulation system, high-pressure gas well must be had to provide energy, the problem that required boosted flow is large to solve around the gas well exploited that exists in prior art.
Utility model content
The purpose of this utility model is to provide a kind of oil/gas well stimulation system, this system can increase the pressure in pit shaft, improves the gas-liquid lifting power being arranged in the sleeve pipe of pit shaft, the gas-liquid flow velocity in sleeve pipe is improved, reach quick effect of increasing production, the gas well that applicable pressure is lower carries out gas production.
For reaching this object, the utility model by the following technical solutions:
A kind of oil/gas well stimulation system, it comprises the first gas-liquid separator and the control device for controlling described oil/gas well stimulation system, the import of described first gas-liquid separator is connected with managing in sleeve pipe, one outlet of described first gas-liquid separator is connected with the import of compressor subsystem, and an outlet is connected with liquid storage tank; One outlet of described compressor subsystem is communicated with the outer ring cavity of sleeve pipe, and an outlet is connected with gas central treating station.
As preferably, described compressor subsystem comprises compressor and the second gas-liquid separator, described second gas-liquid separator one exports and is connected with described liquid storage tank, one outlet is connected with gas central treating station, and described second gas-liquid separator is used for flow into from the first gas-liquid separator in compressor subsystem and being separated by the gas-liquid mixture after compressor pressurizes.
As preferably, described compressor subsystem also comprises the compressor drive apparatus for driving the reciprocating motion of the pistons in described compressor.
As preferably, described compressor subsystem also comprises motor, and described motor is connected with described compressor drive apparatus by clutch or power take-off.
As preferably, described oil/gas well stimulation system also comprises generator, and described motor can drag described generator and generate electricity, and described generator is connected with the power interface of described control device, provides power supply for giving described control device.
As preferably, described motor is gas engine, and described gas engine connects the gas supply pipe of well head.
As preferably, described compressor is reciprocating double-action piston compressor.
As preferably, described compressor subsystem also comprises the oil feeding device for providing lubrication oil to described compressor.
As preferably, the exit of described compressor is provided with sound absorber.
As preferably, described generator is 12V dc generator.
The beneficial effects of the utility model are:
The oil/gas well stimulation system that the utility model provides, because it comprises the first gas-liquid separator, the import of described first gas-liquid separator is connected with managing in sleeve pipe, and an outlet of described first gas-liquid separator is connected with the import of compressor subsystem, and one exports and is connected with liquid storage tank; One outlet of described compressor subsystem is communicated with the outer ring cavity of sleeve pipe, and an outlet is connected with gas central treating station.From in sleeve pipe pipe flow out gas-liquid mixture the first gas-liquid separator after gas-liquid separation, gas becomes gases at high pressure through the compression of compressor subsystem, gases at high pressure return in the outer ring cavity of sleeve pipe again, so increase the pressure in pit shaft by the gases at high pressure returned in pit shaft, improve the gas-liquid lifting power being arranged in the sleeve pipe of pit shaft, gas-liquid flow velocity in sleeve pipe is improved, reaches quick effect of increasing production.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the utility model embodiment, be briefly described to the accompanying drawing used required in the description of the utility model embodiment below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to the content of the utility model embodiment and these accompanying drawings.
Fig. 1 is the structural representation of the oil/gas well stimulation system that the utility model device embodiment provides.
Wherein:
1, the first gas-liquid separator; 2, compressor subsystem; 3, liquid storage tank; 4, gas central treating station; 5, sleeve pipe;
21, compressor.
Detailed description of the invention
The technical problem solved for making the utility model, the technical scheme of employing and the technique effect that reaches are clearly, be described in further detail below in conjunction with the technical scheme of accompanying drawing to the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those skilled in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Fig. 1 is the structural representation of the oil/gas well stimulation system that the utility model device embodiment provides, as shown in Figure 1, oil/gas well stimulation system, comprise the first gas-liquid separator 1 and control device, the import of described first gas-liquid separator 1 is connected with managing in sleeve pipe 5, one outlet of described first gas-liquid separator 1 is connected with the import of compressor subsystem 2, and an outlet is connected with liquid storage tank 3; One outlet of described compressor subsystem 2 is communicated with the outer ring cavity of sleeve pipe 5, and outer ring cavity is the annular space between the inner core of sleeve pipe 5 and urceolus; One outlet is connected with gas central treating station 4.
Described sleeve pipe 5 is positioned at described pit shaft, comprise inside and outside two-layer pipe, described well head is provided with ground hydraulic pump, described ground hydraulic pump is used for the gas-liquid mixture collection of down-hole to come up, gas-liquid mixture is thus lifted to well head from pipe in sleeve pipe, the first gas-liquid separator 1 is flowed into afterwards by conveyance conduit, after the gas liquid separating function of the first gas-liquid separator 1, the liquid separated can enter in liquid storage tank 3 and be stored, or under gases at high pressure drive, process to gas central treating station 4 through Cemented filling.Gas after separation flows in compressor subsystem 2 by compression supercharging, gas becomes gases at high pressure through the compression of compressor subsystem, rear portion gases at high pressure can carry out lifting in the ring cavity between the inside and outside two-layer pipe of re-injection sleeve pipe again, the pressure in pit shaft is increased by the gases at high pressure returned in pit shaft, improve the gas-liquid lifting power being arranged in the sleeve pipe 5 of pit shaft, gas-liquid flow velocity in sleeve pipe 5 is improved, reaches quick effect of increasing production.Gas central treating station 4 can be flowed directly into from compressor subsystem a part of gases at high pressure out in addition, enter next recipe step, namely process or store.
In the present embodiment, described compressor subsystem 2 comprises compressor 21 and the second gas-liquid separator, described second gas-liquid separator one exports and is connected with described liquid storage tank 3, one outlet is connected with gas central treating station 4, and described second gas-liquid separator is used for flowing into compressor subsystem 2 from the first gas-liquid separator 1 interior and be separated by the gas-liquid mixture after compressor 21 pressurizes.
Described compressor 21 is the slow-speed of revolution, reliable, quiet compressor.The muting function of described compressor 21 can by arranging sound absorber to realize in the exit of compressor 21.Certainly, the mode reaching muting function is not limited thereto.
Described second gas-liquid separator be used for the too small and gas-liquid mixture that causes of pressure in pit shaft in the first gas-liquid separator 1 can not separated.When the gas-liquid mixture flowed out from the first gas-liquid separator 1 enters after compressor subsystem 2 by the second gas-liquid separator separates in it, the gas separated processes through Cemented filling to gas central treating station 4 or stores, simultaneously by the Liquid transfer separated in liquid storage tank 3, thus by the Pressure Drop to zero of well head.
In the present embodiment, preferably, described compressor subsystem 2 also comprises the compressor drive apparatus for driving the reciprocating motion of the pistons in described compressor 21.
In the present embodiment, as further preferred version, described compressor subsystem 2 also comprises motor, and described motor is connected with described compressor drive apparatus by clutch or power take-off.
In the present embodiment, preferably, described compressor 21 is reciprocating double-action piston compressor.The kind of certain described compressor 21 is not limited thereto, and can also be the compressor of other type.
In the present embodiment, preferably, described compressor subsystem 2 also comprises oil feeding device, and described oil feeding device is used for providing lubrication oil to described compressor 21.
Described control device is for controlling whole oil/gas well stimulation system, it is all connected with the first gas-liquid separator 1, second gas-liquid separator, compressor 21, liquid storage tank 3, gas central treating station 4 and ground hydraulic pump, for giving an order, control the operation of whole system.And this control device can also carry out component analysis to the gas-liquid mixture gathering out in pit shaft.The operation of control unit to whole system provides the control of industrial standardization.
This system also comprises generator, and described generator is preferably 12V dc generator.Described motor can drag described generator and generate electricity, and described generator is connected with the power interface of described control device, provides power supply for giving described control device.The electric power that described control device uses drags 12V motor by motor and produces, electric power supply that need not be outside.
Described motor is gas engine, and preferably, described gas engine connects the gas supply pipe of well head, and gas supply pipe air inlet port is connected with managing in sleeve pipe 5, and described gas engine can use the combustion gas of well head, supplies raw materials without the need to the external world.
Below the service condition of oil/gas well stimulation system is introduced:
The suction pressure at well head place is close to 0kPa; Discharge (pipeline) pressure lower than 1,950kPa; Namely pressure at expulsion is 0 ~ 1950kPa; Every day, most high yield tolerance was 45,300m
3; Every day, the highest Liquid output was: 60m
3.
Based on the piston of diameter 250mm, under the condition of suction pressure 400kPa, the gas production of every day is lower than 35,000m
3.If suction pressure is reduced to 200kPa, so the output of every day is about 26,000m
3, the output that small-bore piston brings increases corresponding minimizing, but blowdown presssure is higher.
Table one, table two and table three are respectively the gas production under different air-breathing and pressure at expulsion.The gas production during piston that wherein table one is use model is DN150, table two is gas production when model is the piston of DN200; Table three is gas production when model is the piston of DN250.
Table one
Table two
Table three
Oil/gas well stimulation system class described in the application is similar to an oil pumper, it is a kind of compressor of long stroke/low speed, this cover system can in maximum lifting 45 every day under pressure at expulsion 1.72MPa, the natural gas of 300 cubic metres, pressure of inspiration(Pi) be down to close to zero time, the flow of hydraulic pump reaches 60 liters/min.
Well head volume increase compressor assembly can use as separation facilities and metering facility, and can hydraulic power be provided for artificial lift facility or use as jet pump, the gases at high pressure of discharging can be recycled in pit shaft to promote gas-liquid flow velocity in oil pipe, native system has in a series of well optimizes hoisting system, and whole system is completely closed.
Can be used for comprising more particle or inferior coal-bed-gas production-increase, can be used for the gas well containing highly viscous crude, can be used for the moisture containing liquid.Skid-mounted type structure need not concrete foundation, installs simple, resettlement easily; Easy and simple to handle, operator is required low; Be applicable to the gas that impurity is many, quality is low; Operating low speed and low noise (25 meters 57 decibels); Extremely low maintenance cost; Service life reliably and with long-term; Cheap accessory.Remote data transmission ability, nobody can hold and keep.
Note, above are only preferred embodiment of the present utility model and institute's application technology principle.Skilled person in the art will appreciate that the utility model is not limited to specific embodiment described here, various obvious change can be carried out for a person skilled in the art, readjust and substitute and protection domain of the present utility model can not be departed from.Therefore, although be described in further detail the utility model by above embodiment, but the utility model is not limited only to above embodiment, when not departing from the utility model design, can also comprise other Equivalent embodiments more, and scope of the present utility model is determined by appended right.
Claims (10)
1. an oil/gas well stimulation system, it is characterized in that, comprise the first gas-liquid separator (1) and the control device for controlling described oil/gas well stimulation system, the import of described first gas-liquid separator (1) is connected with the interior pipe of sleeve pipe (5), one outlet of described first gas-liquid separator (1) is connected with the import of compressor subsystem (2), and an outlet is connected with liquid storage tank (3); One outlet of described compressor subsystem (2) is communicated with the outer ring cavity of sleeve pipe (5), and an outlet is connected with gas central treating station (4).
2. oil/gas well stimulation system according to claim 1, it is characterized in that, described compressor subsystem (2) comprises compressor (21) and the second gas-liquid separator, described second gas-liquid separator one outlet is connected with described liquid storage tank (3), one outlet is connected with gas central treating station (4), and described second gas-liquid separator is used for flowing into from the first gas-liquid separator (1) in compressor subsystem (2) and gas-liquid mixture separation after being pressurizeed by compressor (21).
3. oil/gas well stimulation system according to claim 2, is characterized in that, described compressor subsystem (2) also comprises the compressor drive apparatus for driving the reciprocating motion of the pistons in described compressor (21).
4. oil/gas well stimulation system according to claim 3, is characterized in that, described compressor subsystem (2) also comprises motor, and described motor is connected with described compressor drive apparatus by clutch or power take-off.
5. oil/gas well stimulation system according to claim 4, it is characterized in that, also comprise generator, described motor can drag described generator and generate electricity, described generator is connected with the power interface of described control device, provides power supply for giving described control device.
6. oil/gas well stimulation system according to claim 4, is characterized in that, described motor is gas engine, and described gas engine connects the gas supply pipe of well head.
7. oil/gas well stimulation system according to claim 2, is characterized in that, described compressor (21) is reciprocating double-action piston compressor.
8. oil/gas well stimulation system according to claim 2, is characterized in that, described compressor subsystem (2) also comprises the oil feeding device for providing lubrication oil to described compressor (21).
9. oil/gas well stimulation system according to claim 2, is characterized in that, the exit of described compressor (21) is provided with sound absorber.
10. oil/gas well stimulation system according to claim 5, is characterized in that, described generator is 12V dc generator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420431399.4U CN204041035U (en) | 2014-08-01 | 2014-08-01 | A kind of oil/gas well stimulation system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420431399.4U CN204041035U (en) | 2014-08-01 | 2014-08-01 | A kind of oil/gas well stimulation system |
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| CN204041035U true CN204041035U (en) | 2014-12-24 |
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| CN201420431399.4U Expired - Lifetime CN204041035U (en) | 2014-08-01 | 2014-08-01 | A kind of oil/gas well stimulation system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107542442A (en) * | 2017-09-26 | 2018-01-05 | 碧海舟（北京）节能环保装备有限公司 | A kind of energy-efficient low stain strength fire flood system |
-
2014
- 2014-08-01 CN CN201420431399.4U patent/CN204041035U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107542442A (en) * | 2017-09-26 | 2018-01-05 | 碧海舟（北京）节能环保装备有限公司 | A kind of energy-efficient low stain strength fire flood system |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: BIHAIZHOU (BEIJING) ENERGY SAVING AND ENVIRONMENTA Free format text: FORMER NAME: BIHAIZHOU (BEIJING) PETROCHEMICAL EQUIPMENT CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 100029 Beijing city Chaoyang District Xiaoguan Beili 45 Jiayuan century No. 5 Building 7 layer Patentee after: BIHAIZHOU (BEIJING) ENERGY SAVING ENVIRONMENTAL PROTECTION EQUIPMENT Co.,Ltd. Address before: 100029 Beijing city Chaoyang District Xiaoguan Beili 45 Jiayuan century No. 5 Building 7 layer Patentee before: BSS (BEIJING) PETRO-CHEMICAL EQUIPMENT CO.,LTD. |
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| CX01 | Expiry of patent term |
Granted publication date: 20141224 |
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| CX01 | Expiry of patent term |